HP N8400 manual Automatic document feeder ADF problems, Paper does not feed from the ADF

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Chapter 5

Automatic document feeder (ADF) problems

Use this section to help resolve issues that might occur when scanning from the ADF.

•Paper jamming, skewing, misfeeds, or multiple-page feeds

•Paper does not feed from the ADF

•The bottom of the scanned image is cut off

•The scanned images have streaks or scratches

•An item loaded in the ADF jams repeatedly

•Clear jams from the ADF

Paper jamming, skewing, misfeeds, or multiple-page feeds

•If the pages look skewed as they feed into the automatic document feeder, check the resulting scanned images in the software to ensure that they are not skewed.

•The pages might not be placed correctly. Straighten the pages and adjust the paper guides to center the stack.

•The ADF input tray or output tray might contain more than the maximum number of pages. Load fewer pages in the input tray, and remove pages from the output tray.

•If misfeeds occur frequently, perform document feeder maintenance. For information on the following tasks, see Care and maintenance.

•Clean the ADF.

•If the problem persists, clean the feed roller.

•If the problem persists, replace the feed roller.

•Remove any objects that are on the ADF lid.

•Check to see that the ADF lid is fully closed.

Paper does not feed from the ADF

•The ADF lid might not be securely latched. Open the ADF lid and then close it by pressing firmly.

•A problem with the ADF hardware might exist. Use the following procedure to test the ADF:

•Disconnect the USB cable and the power cable from the scanner. Check that the power cable is still connected to the power source.

•Ensure that the accessory cable is connected to the scanner accessory port, and that the ADF has at least two pieces of paper in the input tray.

•Reconnect the power cable to the scanner, and then turn the scanner on.

•Try to scan another page through the ADF.

If the ADF does not feed paper, contact HP Customer Support.

The bottom of the scanned image is cut off

By default, the scanner can scan media that is up to 355.6 mm (14 inches) long. For longer pages, the end of the document is not included in the scanned image.

Verify that you have specified an appropriate page size in the scanning software.

For information on how to enable scanning of media up to 863.6 mm (34 inches), see the Advanced Technical Features section.

32 Troubleshooting

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Contents HP Scanjet N8400 series Copyright and license Trademark creditsContents Troubleshooting Advanced technical featuresScanner overview What you can do with the scannerScanner front panel buttons Power Save buttonScanner hardware Quick start buttonsCopy buttons Scan Document To buttonsScanner software Scanner lamp settingHP Smart Document Scan Software HP Scanner Tools Utility HP Document Copy UtilityScan Progress Window User Guide Where to get additional informationSetup and Support Guide Click View or print guidesControl of the scanner buttons AccessibilityLCD Reader HP Scanner Tools Utility helpBasic scanning steps Scan and CopyBasic copying steps Place an original on the scanner glass Load originalsLoad paper into the document feeder Scan from the scanner front panel buttons Scan from HP Smart Document Scan SoftwareScan from other software programs Scan with one button pressSet up scan profiles Set up an HP Smart Document Scan Software profileChoose profiles for display on the scanner front panel Assign profiles to quick start buttonsClick Continue Import and export profiles Order maintenance and scanning supplies Care and maintenanceHP Scanner Tools Utility Maintenance tab Clean the scanner glassClean the paper path Maintain the automatic document feeder ADFClean the ADF window Clean the feed roller Maintain the automatic document feeder ADF Chapter Remove the automatic document feeder from the scanner Replace the feed roller and separation padChapter Troubleshooting Scanner error messagesChapter Scanner initialization or hardware problems Scanner does not startScanner has stopped working correctly Scanner operation problemsScanner will not turn on Scanner scans only one side of a double-sided Scanner lamp stays onScanner does not scan right away Scanned image is fuzzyScanner glass is dirty Scanned images are not straightVertical white stripes appear on the printed Scan files are too largeScanner buttons are not working correctly An unexpected program opens when a button is pressedWrong profile is used when a quick start button is pressed Buttons do not workPaper does not feed from the ADF Automatic document feeder ADF problemsPaper jamming, skewing, misfeeds, or multiple-page feeds Bottom of the scanned image is cut offClear jams from the ADF Scanned images have streaks or scratchesAn item loaded in the ADF jams repeatedly Clear a jam from the start of the paper pathChapter Clear a jam at the end of the paper path Contact HP Support Remove a paper jam within the ADFAdvanced technical features Long pagesPage Index ADF
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